/Engine/Source/Editor/UnrealEd/Public/Kismet2/BlueprintEditorUtils.h
Find the index of a local variable declared in this blueprint. Returns INDEX_NONE if not found.
The index of the variable, or INDEX_NONE if it wasn't introduced in this blueprint.
static int32 FindLocalVariableIndex ( const [UBlueprint](API\Runtime\Engine\Engine\UBlueprint) * Blueprint, [UStruct](API\Runtime\CoreUObject\UObject\UStruct) * VariableScope, const [FName](API\Runtime\Core\UObject\FName) & InVariableName )